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1 definition by WoolyRyno

 
1.
Referring to an ass, usually a female's of great quality. Said donk is large, round, and firm not flabby.

Origination: It is the short-hand for donkey, which is of course a synonym of ass through animal nomenclature.

Other: The term became exceedingly popular after Soulja Boy's song by the same name was released.
A girl with a fine rump walks by...

Boy 1 (pointing) : She got a donk!

Boy 2: Damn dude, she does have a donk.
by WoolyRyno June 26, 2010